CN215469332U

CN215469332U - Buffering guide pin mechanism

Info

Publication number: CN215469332U
Application number: CN202120970575.1U
Authority: CN
Inventors: 王一田; 顾慎皓; 汪明敏
Original assignee: Stark Hearing Technology Suzhou Co ltd
Current assignee: Stark Hearing Technology Suzhou Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-01-11
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a buffering guide pin mechanism, which comprises: the device comprises a limiting correcting plate and an elastic lead assembly, wherein the limiting correcting plate is provided with a pinhole for accommodating and correcting a contact pin; the elastic lead assembly is connected with the limiting correction plate and comprises a guide part, a guide rod and a spring, the guide rod penetrates through the guide part and then is connected with the limiting correction plate, and the spring is arranged in the guide rod and sleeved on the guide rod. The buffering guide pin mechanism can automatically correct the contact pin and drive the contact pin to be close to the workpiece to be assembled according to the specific track, so that the contact pin can be accurately assembled into the workpiece to be assembled, and the assembly quality is improved.

Description

Buffering guide pin mechanism

Technical Field

The utility model relates to the field of pin pressing machines, in particular to a buffering guide pin mechanism.

Background

In many products, it is necessary to insert a needle-like metal member to perform the function of connection, pin or support. For example, during the production of hearing aids, it is necessary to fit short pins into the flexible material parts of the hearing aid. Generally, the pin is assembled manually, and the manual assembly requires an operator to hold the pin with one hand and then press the pin into a workpiece to be assembled by means of striking and the like. Therefore, the requirement of manual assembly on an operator is high, and in the manual assembly process, the position relation, the assembly force and the like between the contact pin and the workpiece to be assembled are manually controlled, so that the assembly efficiency is low, and the assembly quality is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above-mentioned drawbacks of the prior art and provide: a buffering guide pin mechanism can automatically correct a contact pin and can be close to a workpiece to be assembled according to a specific condition.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a buffered pin mechanism comprising:

a limiting straightening plate configured with pinholes to receive and straighten the pins;

the elastic lead assembly is connected with the limiting correction plate and comprises a guide part, a guide rod and a spring, the guide rod penetrates through the guide part and then is connected with the limiting correction plate, and the spring is arranged in the guide rod and sleeved on the guide rod.

Furthermore, the position guide piece is provided with a channel, and the channel penetrates through the position limiting piece; the lower end of the guide rod movably penetrates through the channel.

Further, the position guide piece is provided with a spring cavity, and the spring cavity is communicated with the channel; the spring is disposed in the spring cavity.

Further, a step is formed between the spring cavity and the channel; the guide rod is provided with a limiting ring; the spring is arranged between the step and the limiting ring, the lower end of the spring is abutted against the step, and the upper end of the spring is abutted against the limiting ring.

Furthermore, the limit ring radially protrudes out of the guide rod

Further, the pinhole is funnel-shaped.

Compared with the prior art, the utility model has the advantages that: the limiting correction plate is provided with the pin hole capable of correcting the pin, and the buffering guide pin mechanism can be close to the workpiece to be assembled according to the specific track, so that the pin can be accurately assembled into the workpiece to be assembled, and the assembly efficiency and the assembly quality are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the needle pressing machine of the present invention;

FIG. 2 is a schematic structural diagram of a frame and an automatic needle pressing mechanism of the needle pressing machine of the present invention;

FIG. 3 is a schematic structural view of a connecting plate of the needle pressing machine of the present invention;

FIG. 4 is a schematic structural view of a pressing member of the needle pressing machine of the present invention;

FIG. 5 is a schematic structural diagram of a buffering and guiding mechanism of the present invention;

figure 6 is a cross-sectional view of the elastic lead assembly of the buffered needle guide mechanism of the present invention.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length h", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1, the needle pressing machine of the present invention comprises a frame 1, an automatic needle pressing mechanism 2 arranged on the frame 1, a buffer needle guiding mechanism 3 arranged below the automatic needle pressing mechanism 2, and a clamp 6 for fixing a workpiece to be assembled.

As shown in fig. 2, the machine frame 1 includes a base 11 and a support 10 fixed on the base 11, wherein the buffering and guiding mechanism 3 is disposed on the base 11, and the automatic needle pressing mechanism 2 is mounted on the support 10. The buffering guide pin mechanism 3 and the support 10 are both arranged on the top surface of the base 11, specifically, the top surface of the base 11 is provided with a plurality of vertical guide holes 13 for cooperating with the buffering guide posts of the buffering guide pin mechanism 3, and the support 10 can be vertically connected with the base 11 through screws or bolts and the like.

As a preferred structure, four corners of the bottom surface of the base 11 are provided with feet 12 for supporting the needle pressing machine.

The automatic needle pressing mechanism 2 is used for pressing the inserting needle downwards from the buffering needle guide mechanism 3 and pressing the inserting needle into a workpiece to be assembled to complete the assembly of the inserting needle and the workpiece to be assembled, and the automatic needle pressing mechanism 2 comprises a power device 20, a connecting plate 21 connected with the power device 20 and a pressing piece 22 arranged on the connecting plate 21.

The power device 20 is a power source for the needle pressing machine to complete the task of assembling the inserting needle and the workpiece to be assembled, and the power device 20 can be an air cylinder or an electric cylinder. The power device 20 is fixed on the support 10 and includes a telescopic piston rod or lead screw 201, and the piston rod or lead screw 201 is fixedly connected with the connecting plate 21 and drives the connecting plate 21 to make vertical reciprocating motion. The power device 20 further comprises a switch 202 for controlling the power device 20 to start and stop, and the switch 202 is arranged on the front plate of the base 11. Preferably, the power device 20 is provided with two switches 202, and the power device 20 is started only when the two switches 202 are pressed simultaneously, so as to drive the pressing piece 22 to move downwards to press the contact pin into the workpiece to be assembled. Two switches 202 need both hands to be operated simultaneously, so, in automatic tucking machine 2 working processes, can guarantee that operator's both hands have all left buffering guide pin mechanism 3, can effectively avoid the tucking machine to cause the injury to the operator when acting.

As shown in fig. 3, the connection plate 21 includes a plate body 210 connected to the screw 201 and a fixing portion 211 detachably connected to the plate body 210, and the fixing portion 211 is fixedly connected to the pressing member 22. Specifically, the fixing portion 211 is provided with a fixing hole 212 for limiting the pressing piece 22, and the pressing piece 22 is disposed in the fixing hole 212. When the pressing piece 22 is worn or the pressing piece 22 with different sizes needs to be replaced, only the new pressing piece 22 and the fixing part 212 matched with the pressing piece 22 need to be replaced, and the assembly and disassembly are simple and the replacement is convenient.

As shown in fig. 4, the pressing member 22 contacts the contact pin and the buffer and guide pin mechanism 3 and presses the contact pin from the buffer and guide pin mechanism 3 into the workpiece to be assembled. The pressing member 22 includes a connecting portion 220 and a pressing portion 221, the connecting portion 220 is disposed in the fixing hole 212 of the fixing portion 211, the pressing portion 221 is disposed at a bottom end of the connecting portion 220, and the pressing portion 221 is cylindrical.

The lower portion of the connection plate 21 is further provided with an elastic member (not shown) having a length longer than the length of the pressing portion 221 protruding from the connection plate 21, so as to ensure that the buffer and guide pin mechanism 3 is pushed to move toward the workpiece before the pressing portion 221 contacts the pin. After the buffering and guiding mechanism 3 contacts with the clamp 6, the connecting plate 21 continues to compress the elastic component, the pressing part 221 contacts with the contact pin, and the contact pin is pressed into the workpiece to be assembled.

The automatic needle pressing mechanism 2 further comprises a baffle plate 23, and the baffle plate 23 is connected with the connecting plate 21 and is hung at the front end of the connecting plate 21 and is blocked between an operator and the pressing piece 22. In the process that the automatic pin pressing mechanism 2 moves downwards to press the pins into the workpiece to be assembled, the baffle plate 23 moves downwards along with the connecting plate 21 and is blocked between an operator and the workpiece to be assembled, and the pins are prevented from being separated from the pin pressing machine and flying to the operator in the process. The baffle 23 is provided with a slide rail 230, and the baffle 23 can move up and down relative to the connecting plate 21 by taking the slide rail 230 as a rail, so that after the lower end of the baffle 23 is contacted with the top plate of the base 11, the connecting plate 21 can continue to move downwards without being hindered by the baffle 23.

The automatic needle pressing mechanism 2 further comprises a guide post 24, the guide post 24 is vertically fixed on the base 11, the guide post 24 penetrates through a guide hole formed in the connecting plate 21, when the connecting plate 21 is driven by the power device 20 to move vertically, the moving track of the connecting plate 21 is limited by the guide post 24, and the connecting plate 21 can only move up and down along the guide post 24, so that the guide post 24 can effectively ensure that the automatic needle pressing mechanism 2 can accurately assemble a needle into a workpiece to be assembled, and the assembling quality is improved.

As shown in fig. 5, the buffering and guiding mechanism 3 comprises a limit straightening plate 4 and an elastic lead component 5 connected with the limit straightening plate 4, wherein the limit straightening plate 4 is arranged below a connecting plate 21, and when the limit straightening plate 4 is pressed, the elastic lead component 5 moves downwards according to a specific track; when the pressure of the limiting straightening plate 4 is removed, the elastic lead assembly 5 can drive the limiting straightening plate 4 to return to the original position.

Spacing correction board 4 is used for placing the contact pin and corrects the contact pin, and spacing correction board 4 is constructed to hold and corrects the pinhole 40 of contact pin, and pinhole 40 is for leaking hopper-shaped, and pinhole 40 superstructure is opened in order to make things convenient for the operator to put into pinhole 40 with the contact pin. The needle hole 40 is provided directly below the pressing member 22 so that the pressing portion 221 of the pressing member 22 can pass through the needle hole 40 by the driving of the power unit 20. It is noted that the diameter of the pressing portion 221 is smaller than the smallest diameter of the pin hole 40, so that the pressing portion 221 can pass through the pin hole 40 to press the pin into the workpiece to be assembled.

As shown in fig. 6, the elastic lead assembly 5 includes a guide member 51, a guide rod 50 movably disposed in the guide member 51 and connected to the position-limiting correction plate 4, and a spring 52 disposed on the guide rod 50. The guide member 51 is fixedly disposed in the vertical guide hole 13, the guide member 51 is formed with a passage 511 for accommodating the guide bar 50 and a spring chamber 512 for accommodating the spring 52, and the passage 511 axially penetrates the guide member 51 along the guide member 51. The lower end of the guide rod 50 is movably arranged in the channel 511 in a penetrating way, and the upper end of the guide rod 50 is fixedly connected with the limiting correction plate 4. The spring chamber 512 communicates with the passage 511, and the spring 52 is disposed in the spring chamber 512. A step 513 is formed between the spring cavity 512 and the passage 511, the guide rod 50 is provided with a limit ring 510, the limit ring 510 extends along the circumferential direction of the guide rod 50 and protrudes out of the guide rod 50 in the radial direction, the limit ring 510 is arranged at the lower end of the guide rod 50 and is configured in the spring cavity 512, the spring 52 is arranged between the step 513 and the limit ring 510, the lower end of the spring 52 is abutted against the step 513, and the upper end of the spring 52 is abutted against the limit ring 510. When the limiting correction plate 4 is subjected to downward acting force, the guide rod 50 can move downwards along the channel 511 in the channel 511 of the guide part 51, so that the limiting correction plate 4 can be pushed by the automatic needle pressing mechanism 2 to approach a workpiece to be assembled below the buffering and guiding mechanism 3 until the limiting correction plate 4 is contacted with the workpiece to be assembled, and after the limiting correction plate 4 is contacted with the workpiece to be assembled, the automatic needle pressing mechanism 2 pushes out a contact pin from the limiting correction plate 4 and presses the contact pin into the workpiece to be assembled, so that the assembly of the contact pin and the workpiece to be assembled is completed; when the acting force on the limiting correcting plate 4 is removed, the limiting correcting plate 4 and the guide rods 50 can return to the original positions under the restoring force of the springs 52.

The clamp 6 is fixed on the top plate of the base 11 and arranged below the limiting correction plate 4, the clamp 6 is provided with a limiting positioning groove for a workpiece to be assembled, and the workpiece to be assembled is placed in the positioning groove. The clamp 6 is also provided with a through hole communicated with the positioning groove, and the through hole is arranged right below the pinhole 40. In the case where the pin has been loaded into the workpiece to be assembled, when the operator presses the pin into the workpiece to be assembled again, the previously pressed pin is pressed into the through hole.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a buffering guide pin mechanism which characterized in that:

the method comprises the following steps: a limiting straightening plate configured with pinholes to receive and straighten the pins;

2. The buffering and needle guiding mechanism according to claim 1, characterized in that:

the guide part is provided with a channel, and the channel penetrates through the guide part;

the lower end of the guide rod movably penetrates through the channel.

3. The buffering and needle guiding mechanism according to claim 2, characterized in that:

the guide piece is provided with a spring cavity which is communicated with the channel;

the spring is disposed in the spring cavity.

4. The buffering and needle guiding mechanism according to claim 3, wherein:

a step is formed between the spring cavity and the channel;

the guide rod is provided with a limiting ring;

the spring is arranged between the step and the limiting ring, the lower end of the spring is abutted against the step, and the upper end of the spring is abutted against the limiting ring.

5. The buffering and needle guiding mechanism according to claim 4, wherein:

the limiting ring radially protrudes out of the guide rod.

6. The buffering and needle guiding mechanism according to claim 1, characterized in that:

the pinhole is funnel-shaped.